Home / 5,785.80-8,677.66-1,890.19

Finding the Fourth Proportional to 5,785.80, 8,677.66 and 1,890.19

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Solution

The fourth proportional to 5,785.80, 8,677.66 and 1,890.19 is: 2,834.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.80 : 8,677.66 = 1,890.19 : x
  2. Step 2: Convert to fraction form
    5,785.80/8,677.66 = 1,890.19/x
  3. Step 3: Cross multiply
    5,785.80x = 8,677.66 × 1,890.19
  4. Step 4: Simplify right side
    5,785.80x = 16,402,426.16
  5. Step 5: Solve for x
    x = 16,402,426.16/5,785.80
  6. Step 6: Final answer
    x = 2,834.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.